explaingit

componentjs/component

4,525JavaScriptAudience · developerComplexity · 2/5Setup · hard

TLDR

Component was a frontend build and package management tool for JavaScript that handled dependencies, HTML, CSS, and asset processing in one place, but it is now deprecated and the README recommends webpack, jspm, or browserify instead.

Mindmap

mindmap
  root((component))
    What it was
      Frontend build tool
      Package manager
      Asset pipeline
    Status
      Deprecated
      No longer maintained
      Alternatives suggested
    Alternatives
      webpack
      jspm
      browserify
    History
      component.json format
      Two author generations
      Led to Duo.js
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Code map

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filefunction / class

Things people build with this

USE CASE 1

Maintain legacy projects that were built with Component before it was deprecated

USE CASE 2

Understand the history of frontend build tooling as context for evaluating modern tools like webpack or Vite

Tech stack

JavaScriptnpm

Getting it running

Difficulty · hard Time to first run · 1h+

This project is deprecated and no longer maintained, the README recommends webpack, jspm, or browserify as modern alternatives.

No licence information was provided in the explanation.

In plain English

This project is deprecated and no longer maintained. The README makes this clear upfront and points visitors to other tools for modern web development. If you are looking for something actively supported, the README itself suggests webpack, jspm, or browserify as alternatives. When it was active, Component was a frontend build and package management tool for JavaScript web applications. The idea was to bring together everything a frontend project needs in one place: managing dependencies, processing HTML, JavaScript, CSS, images, and fonts, and producing a finished build ready for the browser. Rather than wiring together several separate tools, Component was meant to handle the whole pipeline under a single command. It used its own package format, described in a component.json file, separate from the npm package.json standard. Packages were hosted on a registry at component.github.io. You installed Component globally via npm and then ran component build in your project to produce output. The project went through two major generations of authorship and a significant 1.0 release that reorganized how it worked. Eventually the original authors moved on to other projects, including Duo.js and normalize.io, and active development stopped. The stated plan was to revisit the project only if browsers ever natively adopted ES6 modules and Web Components, which has since happened through other ecosystem paths. Many of the individual components published under the Component organization on GitHub still exist and remain usable because most also include a package.json file, making them compatible with standard npm tooling. The component.json files in those packages are kept only for backwards compatibility.

Copy-paste prompts

Prompt 1
I have an old project using component.json - help me migrate it to use npm and webpack instead
Prompt 2
Explain what Component did as a frontend build tool and how it compares to modern tools like webpack or Vite
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